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ePaper created 2016-09-20, 16:58:27 | version 1.38.0
Journal of Oral Science & Rehabilitation 64 Volume 2 | Issue 3/2016 i n v i t r o s t u d y o n v i s c o s i t y standard deviation values of 20.04 mPa s (SD ± 0.04) (Fig. 2). When different disposable test tubes and spheres were used, the calculated mean and standard deviation values were 20.14 mPas(SD±0.04)(Fig.3).Thesevaluesweresim- ilartothepreviousones.Themeasurementsofthe viscosityusing different amounts offluid showed nodifferencesbetweenthefivesamples.Thecal- culatedmeanandstandarddeviationvalueswere 20.12 mPa s (SD ± 0.06) (Fig. 4). R e p r o d u c i b i l i t y w i t h S a l i v e h t The five measurements taken on the same day withthesametubeandsphereusingSalivehtsep- arated bya 30 min intervalwere quite similarand yielded mean and standard deviation values of 4.02 mPa s (SD ± 0.06) (Fig. 5). Using different test tubes, spheres and Saliveht to obtain five measurements onthe same dayresulted in mean and standard deviation values of 4.26 mPa s (SD ± 0.08),with no differences betweenthe five measurements (Fig. 6). Using different amounts ofthetestsolutionresultedinmeanandstandard deviation values of 4.04 mPa s (SD ± 0.08), and nodifferenceswerenotedwithdifferentamounts of solution (Fig. 7). Discussion Saliva aids in maintaining healthy dentition throughout one’s life and is important for oral health. Saliva contributesto numerousfunctions inthe oralcavity, such as speech and swallowing of foods, maintenance of oral health, protection of the mucosa from bacterial attack and fungal growth, prevention of demineralization of the Figs. 1a–d (a) Electromagnetically spinning sphere viscometer. (b) A glass tube. (c) An aluminum sphere. (d) A schematic of the measurement method. a b c d Figs. 1a–d